Steam-heating system.



R. B. ATKINSON.

STEAM HEATING SYSTEM. APPLICATION FILED MAY 17, 1907.

Patented May 4, 1909.

2 SHEETSSHEET l.

INVENTORF ROBERT E RN EsTA'IRmSoN 1v? ATTf R. E. ATKINSON.

STEAM HEATING SYSTEM.

- APPLICATION IILED MAY 17, 1907;

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M m 2 a .H N Mm M w an w m m E m T R w E @wwm 3 Wm- 1 Efi a packing pluc- ROBERT l lRNlsS'l A'llilNStlh, Ol" KKIGIlTON, ENGLAND.

STE ARE-HEATING SYSTEM.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed may 17, 1907. Serial No. 374,299.

T 0 all whom it may concern:

Be it known that 1, ROBERT ERNEST AT- KINSON, a subject of the King of Great Britain and Ireland, and residing at Morlsnd avenue, Knighton, Leicester, England, engineer, have invented certain new end useful Im rovcments in Steznn-l leating Systems, of w 'ch the following is a specification.

This invention relates to steun'i-heoting systems, and more particularly to systems employing piping which is-divided into two passages, one for flow and one for return, the object of the'invention being to enable piping of this type to be efiiciently employed in a steztnnhesting system provider with automatic controlling valves upon the radiotors, and to insure that the return water of condensation can be effectively led irony and, further, to facilitate the coinicction ol' the individual length of piping at \'liilcrent positions without interfering with the flow and return andin such a manner that all the littings or connections to the radiators or heatare can be arranged upon one side oi each apparatus, the point of connection upon each radiator or the like serving both as the inlet and outlet.

Referring to the i'iccom mnying drawings: Figure 1 is :1V diugrznnmetic elevation illustrating a portion of a steam-heating system according to the invention, vtig. 2 being :1 sectional elevation on the line A--B (Fig. 1),- Fig. 3' is a. sectional plan on the line (f--13 (Fig. 1); Fig. 4 is :1 sectional elevation of an automatic controlling valve, Fig. 5 being a cross sectionalv end view of the connecting branch thereof, taken on the line i i- IC (Fig. 4). Fig. 6 illustrates in two sectional views a )rglund, employed in the regulator shown in Fig. 4.

In carrying out the invention according to one mode-us illustrated, for exam 10, in the accom mnying drmvings--steum l'rom a. boiler situated in any part of u building or elsewhere is conducted by an ordinary single stea n'main, (1 which, by means of a connection, 7), ol the form comprising two passages or chimlbers, c andd, is connected to u T-picce, c. The T-piece also has two passages c and d, the former being a stemn or supply passage and the letter the return. On one branch of the T-picce another T-piccc, v, is connected, to which the supply and return pipe, 9, for one set of radiators is connected.

A. connection, it, of the form shown, is conl nccterl to the third brunch ol' th T-piecc, c.

The supply and return pipe, g, is led up through successive floors to the radiators, situate i'l on these various lloors.

At the hose or just below the first floor, It, 01'' the vertical supply and return pipe, g, an elbow, l, is littcd. The connections from this supply and return pipe, 5 to the radiotors, 'i, nnry' be nuide by means oi I-picces, uccordingly us there are radiators on one or on both sides of the supply end return pipe. In Fig. l, the first rsuliutor is shown as connected by :tT-piccc, m, it being directly connected to the nutonnrtic controlling valve, '21,

on the radiator by means ol an elbow, o, huv-.

ing two passages therein. The connection for the next pair of radiators is shown in Fig. l at p. 'lhe'uutoinetic c onlrolling \nl've, n, is illustrated in detail in Figs. 4-t5. in all the vurious figures the steuin passage is indicated by c, and the return passage for water ol' condensution by (I. That is to suy-- steam from the single stcmn pipe, (I, enters the steam pessugc, 0, ol the connection I), and thence passes by the passages, c, ol all the piping connected thereto through the untonnitio volrc, n, oleach radiator, the writer of condensation from the letter returning by the passage, (1', ol' the supply and return pipe, g, and the corrcsp mding passage in the main to the passage, (1, ol' the connection, h, from which it con be led. nwuy through it pipe, (1, to any desired position. in order to drain the steam passage, c, o! the supply and return pipe, y, of any \VzltPl ol' condcnsutimi which iney accumulate therein, the elbow, Z, is provided with :1 snndl outlet orilicc controlled by a. regulating screw, .s', the urea ol' the opening being regulated by the screw so as to allow the Witttl' ol condensation to dribble out 8.3 it tends to accumulate. The screw, 8, may be substituted by u small thermostatic valve which will nutoimiticully open the orifice when water of (011(lcl1shti0li collects, but close when st am tends to escape thcrel'roin. A similar arrangement is provided on the connections, c ll, in order to drain water of condensation from the steam passage, c, in the steam main.

lt will be understood that in theT-pieoes, us at m, Fig. 1, suitable passages ore providcd to connect the return pu-ssnges, d, in the branches to the corrcspomling pussugcs a the body or" th fitting, and similar pits- 'c.-; nnty be employed in the i'ourwuy-picccs us at 2), Fig. I, to conncct'thc steam pus-- sages c in the opposite branches of the lifting.

In. such fittings as are shown in Fig. 2, at Z, e smell extension o, is provided to which the.

drain pipe can be connected.

The automatic controlling valve which is illustrated in detail in' Figs. 46 is of a. similar nature to that described in my prior patent No. 829685, that is to soy, the steam valve to is mounted upon 1.11 iron rod 1-, which is connected at one end by s ca I y to e. copper tube 2, the opposite end of Whieu is eonneeted tothe easing of the valve. Thus the two parts (I; and .2, being of materials hevuig different coeflioients of expansion, will cause the valve w to move to or from its seet, uc-

cordingly as the temperature in the radiator rises or falls. The valve w is sorewer-l upon the rod cc, and can be rotated in order to allow for setting or adjustment by mcens ol' :1, hsndsvheel or lever 2 and a spindle 3, fitted with a. cross-pin 5 adapted engage ears 6 upon the vslvew. The screwed hoes is screwedinto s. plug 27 fitting in the radiator "5. Steam first enters valve in u chsmher 7, passes the velve w when the latter is open into a chamber 8, and thence, post another velve 9, into a slumber 10 which leads to the radiator as indie-ted by the arrows 3, Fir, 4. ,Thevslve 9 is provided with e uick-- threaded spindle 11, in order that it meg he thrust down on its soot, oropen to the full extent by a smell ihovement oi' the handle 12. tor, but simply to enable the Tilkllil t1 to he shut oil when required, the vulva cheating the regulation of the steam scco n to quirements, and ell'ecting this reguls! i illitomaticslly.

The Water of condensation in the rediator escapes therefrom as indicated by the illrovvs 2 3, Fig, 4, passing through an ope ,ing 13 in the tube 2, this opening being preferably iii the end of the tube 2 remote from the steam inlet. The liltfl'bl cl lnunicetes r-rith an outlet 1, valve easing through a smell 0 i one of the plugs or glands 16, through Whieh the iron rod ac eossos, and which set as e. stuilinghox. referred to is clearly Fig. 6. I

In order to prevent the plug 16 rotuting when once it is put in position, the end ofthe tube 2 has a smell projection 17, adapted to engage in the opening 15. Connection from the flow and return pipe to the automatic valve can be made by an elbow o, as shown ir Fig. 1, the elbow 0 being screwed direct onto the screwed branch 18, or onto e'union 19, which has a conical nose 21), adapted to seat in a conical recess in the bran-eh 18. The elbow e or the union 19 has a steers c, and an outlet or return order that these tv. may he kept illustrated in detail in This valve 9 is not intended as e I'Cgill;t-

' water oi eoiulenso'tion, suhstentially as, and

' The opening in the plug: 16

which is extended so to enter recess 22 in apsrtition which divides the inlet passage '7 from the outlet passage 1% in the valve casing. The recess 22 may contain rubber or other pecking, ii desired.

It is to he understood that, although the invention is especially applicable to steamhesting s3 terns, it is also applicable to hotvcster systems wherein the flow and return water is to he kept separate, but wherein onl one set of piping is to he usedthst is to say, the invention is applicable to any divided-pipe heating system.

l'leving now described. 3; invention, what I claim as new and desire to secure by Letters Potent is:

1. The combination with e radiator of a automatic regulating valve adapted to periuit the inflow of steam and outflow of :(esiug having an outlet passage 14, said passages communicating and lezuling oii the for the purpose, herciuoel'ore set forth.

The combination with a radiator of an automatic regulating valve adapted to perniit the inflow of steam and outflow of Water of comlensartion to and from the radiator respectively through a single connection, and comprising it casing, having a steam inlet passage in said casing, and it steam outlet passage 10 leading to the radiator, and a passage 8 connecting the aforesaid passages 7 and it), 11. valve in for eontrolling the coininuniootion between the passages 7 and 8,

tie n us for controlling said valve, comprising an iron rod a: and :1 copper tube .2, having an opening 13, glands is for peeking seid iron red one of glands having a. passage 15 therein,- a second valve 9 for controlling the communication between the steam passages S and 10, it quick. threaded spindle 11', secured to said valve 9, a handle 12 on said spindle, said casing having an outlet asssge 14 therein which is connected to t e tube 2 by the passage M for leading away the condensed water.

in testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses. 

